ALUMINUM PROPELLER AMITA3 9.9X11 RIGHT

Function and technical context

The propeller is the fundamental propulsion component that transforms the power of the Yamaha engine into movement of the boat through the controlled rotation of its blades in the water. Made of aluminum, it works in the propulsion system, coupled directly to the output shaft of the marine engine. Its efficiency and state of conservation directly determine the performance, maneuverability and fuel consumption of the ship, being critical to maintaining cruising speed and acceleration capacity in different navigation conditions.

When to replace this part?

Aluminum propellers show symptoms of wear when they present cavitation (erosion on the surface of the blades), deformations, cracks or loss of material due to impacts against submerged objects. It is recommended to inspect the condition of the propeller at least once per sailing season and after any impact or grounding; Preventively replacing a damaged propeller avoids significant power losses, vibrations that can damage the shaft, and costly engine repairs. Gradual wear reduces propulsive efficiency even without visible damage, so periodically checking its condition guarantees optimal operation throughout the navigation campaign.

Compatible Yamaha engines

Equivalent manufacturer part numbers